Guo Si Jiangling Shunda truck engine emission fault light is always on. What is the reason?

The engine emission fault light of Guo Si Jiangling Shunda truck is always on because there is too much carbon deposited on the inner wall of the engine throttle, so it is necessary to clean the engine throttle to eliminate this problem. The specific operation steps are as follows:

1. Remove the air filter of Jiangling Shunda.

Second, after the air filter of Jiangling Shunda vehicle was removed, the throttle valve of Jiangling Shunda was exposed.

3. Insert the wrench into the throttle valve of Jiangling Shunda and push it away.

Fourth, spray the accelerator cleaner into the accelerator of Jiangling Shunda for several times.

5. After cleaning, wipe the inside with a paper towel.

6. Replace the air inlet of Jiangling Shunda air filter to its original position, and the operation is completed.